Pith Number

pith:T3BGJ4TD

pith:2017:T3BGJ4TDQWLF5HQVIEGM6QZ7U4

not attested not anchored not stored refs pending

FO and MSO approach to Some Graph Problems: Approximation and Poly time Results

Kona Harshita, N. Sadagopan, Renjith. P, Sounaka Mishra

arxiv:1711.02889 v1 · 2017-11-08 · cs.LO

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{T3BGJ4TDQWLF5HQVIEGM6QZ7U4}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Receipt and verification

First computed	2026-05-18T00:31:01.447689Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9ec264f26385965e9e15410ccf433fa72996dd6f2b6c4d6f6596486ddac67158

Aliases

arxiv: 1711.02889 · arxiv_version: 1711.02889v1 · doi: 10.48550/arxiv.1711.02889 · pith_short_12: T3BGJ4TDQWLF · pith_short_16: T3BGJ4TDQWLF5HQV · pith_short_8: T3BGJ4TD

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/T3BGJ4TDQWLF5HQVIEGM6QZ7U4 \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: 9ec264f26385965e9e15410ccf433fa72996dd6f2b6c4d6f6596486ddac67158

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d0ac6dfca0327bebaa682f40d44a7c489ae5e55a396d85a9a0fd24d12d3aee03",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LO",
    "submitted_at": "2017-11-08T09:48:55Z",
    "title_canon_sha256": "f3f5624894e91aca39d73a036f3777c6951fcb36ee87dbd6566ea5e3320cb76b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1711.02889",
    "kind": "arxiv",
    "version": 1
  }
}